Biology – Page 123

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The Uses of Wood Rot

February 16, 2009

Wood rot fungus doesn’t sound like a useful thing. Most people would rather get rid of it – especially those who have seen their houses decay because of it. Some scientists, however, are intrigued by it. It may have properties that could some day help power your car. Science Daily reported that the […]

Amazing Facts

Modeling Solar Cells on Butterflies

February 7, 2009

Sunlight is free – if we could just learn how to use it better. For decades, engineers have been trying to improve the efficiency of solar cells. Why not look at nature? Science Daily reported on work going on in China and Japan: “The discovery that butterfly wings have scales that act as tiny solar […]

Fossils

A Tale of Two Sites: Moby Dog and The Claw

February 6, 2009

Discoveries portrayed as major evolutionary missing links were announced this week. One is a putative transitional form from land animal to whale, and one is a Cambrian trilobite-like creature said to be evolving the first claw. Moby dog: The current evolutionary scenario for the origin of whales is that they evolved from dog-like hoofed animals […]

Early Man

What Mean These Observations?

February 5, 2009

Science news outlets report many interesting findings every week. It’s not always clear, though, whether the conclusions drawn from them are warranted by the data. Here are some recent cases: Jaws of steel: A skull labeled Australopithecus robustus was studied for the force its jaws could generate. Interpretation: “Early humans had jaws of steel.” With […]

Birds

The Early Bird Gets the Just-So Story

February 3, 2009

If a catastrophic world event wiped out the dinosaurs, why did birds survive? They’re smaller and more delicate, it seems. National Geographic published a new hypothesis: they out-thought the doomed dinosaurs. “Birds survived the global catastrophe that wiped out their dinosaur relatives due to superior brainpower, a new study suggests.” A couple of […]

Amazing Facts

Corn Is Fuel in More Ways than One

February 3, 2009

There’s been controversy lately about the diversion of corn crops from food for humans to ethanol for engines. Why not both? A new pilot program announced by Fraunhofer-Gesellschaft saves the corn cobs for eating but makes ethanol out of the straw. If so, this would make the whole plant an energy factory for the human […]

Birds

Is Natural Selection Losing its Appeal?

January 28, 2009

Some recent science reports sound like they are ready to cast Darwin’s key phrase natural selection overboard, or at least demote it from its leading role in evolution. These articles each hint that long-held beliefs are being challenged. Make room: Science Daily asked, “Natural Selection Not The Only Process That Drives Evolution?” Scientists at Uppsala […]

Darwin and Evolution

Exploring the Malleability of Evolutionary Explanation

January 23, 2009

Is evolutionary theory just a very malleable and ductile idea, able to adapt to changing observations, or should it be described as a strong theory, powerful in its explanatory breadth?

Biomimetics

Minerals Can Fool Astrobiologists

January 21, 2009

Look at this picture on National Geographic News. Looks alive, doesn’t it? It’s only a mineral. The article contains a gallery of five micrographs of minerals that form curvy crystals. They’re called biomorphs (a word simply meaning life-like shapes). “Until now scientists had thought rounded crystals, such as those found in seashells and […]

Birds

Feather Evolution Proved?

January 21, 2009

Another claim of feather evolution was reported in PNAS.1 Creationists have long claimed that the evolution of feathers from reptilian scales is an intractable problem for Darwinists (example: 1994 article from Creation magazine). Does the paper provide incontrovertible proof that feathers had evolved in dinosaurs before birds took flight in the air? Beipiaosaurus, […]

Amazing Facts

Biology Now Includes Fluid Dynamic Construction

January 13, 2009

There’s an old legend that Tibetan monks built a wall by levitating heavy stones with sound by beating their drums and gongs. Something not quite so fantastic but still amazing is done by cells in the embryo. Scientists have filmed zebrafish embryos using beating cilia to build little stone structures that they use for balance. […]

Amazing Facts

Watch for Flying Giraffes (and Convergent Evolutionists)

January 9, 2009

Imagine giraffe-sized animals that could fly. They lived. National Geographic News has an illustration of an extinct pterosaur, tall as a giraffe, that was able to leap into the air and flap its wings for sustained powered flight. Live Science discussed work by Michael Habib [Johns Hopkins U School of Medicine] on the […]

Terrestrial Zoology

Darwin Missed the Pink Iguanas

January 6, 2009

The news media are excited about pink iguanas found in the Galapagos Islands. The rare type was discovered accidentally in 1986 but received almost no attention till now. Reports with pictures can be found on Live Science, PhysOrg, New Scientist and the BBC News, based on the paper by Gentile et al in PNAS.1 […]

Birds

Nature Struts Darwin Gems

January 2, 2009

Like a showcase of pearl-handled revolvers, an armory of evidences Nature calls “Darwin’s Gems” have been exhibited to warn creationists that Darwin Day will be defended next month with a show of force. The authors, Henry Gee (former editor of Nature), Rory Howlett and Philip Campbell have made their 15 Evolutionary Gems freely available “and […]

Amazing Facts

Handy Motor Found in Virus

December 30, 2008

Your job today is to stuff a delicate chain into a barrel without breaking it and make it wrap neatly inside. A tiny virus does this with helping hands, reported Purdue University. A research team uncovered the mechanism of a “powerful molecular motor” that crams the viral DNA tightly into the capsid with the help […]

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